and no one found nothing. According to all of them my PC is malware free.

• Discs have a lot of free space (C, 30 GB; D, 40 GB; E, 25 GB; F, 110 GB). I defragmented them, run the Error Checking, and even remove from my PC the Outlook pst files --to prevent Outlook to start compacting them automatically-- and leave the PC with no program open.

• I got my PC off network.

• Using the Windows XP CD I run the Systems Files Checker. Everything is OK.

Yes, I've tried Process Explorer but, as log as I can understand it, it shows same thing than Task Mgr. It's very complicated for me to understand rest of indications.

That noise is not for a while, it's constant. When I doing something in my PC, the noise is accompanied by the disks red light, like it should b. When I'm doing nothing, and no program is open, there's no light but disc noise only,... and this is the problem: it never stops.

In the background I can here the fan noise, which is completely different. Fan's is regular but disk's is irregular and have different tones.

Since those two are the only movable pieces inside my desktop box, I'm sure that both are emitting sound ALL THE TIME.

When I run ESET Smart Security 4 to scan my PC for malware, the noise I hear --in this case, accompanied by the disks red light-- is exactly the same I hear when my PC is doing nothing.

By the way, my PC shutting down process is a bit long and and the disc noise sounds till the very last moment.

• I don't have Google Desk installed but Lookeen, which is a program that runs with Outlook and only when Outlook is open, but even when Outlook is closed the noise persists. Anyway, I uninstalled Lookeen and noise continued.

• As far as I know, Microsoft Security Essentials is not compatible with ESET Smart Security. Is it?

• I have 3 hard discs installed in my PC, all of them are Western Digital (WDC), and according with WDC program, and Seatools program, all are fine.

• I've run anti Rootkit programs, like F-Secure Flashlight, and found nothing.

However, I couldn't run FPort, Whenever I tried, a kind of DOS screen appears momentarily but disappears immediately.

Just in case this could be an indication that I've been hacked and my PC is being used through a specific port, I clock all network traffic but the disc noise continues.

I've just run Filemon and did what Johnw suggested. All programs running are known but two: and

I've just disabled the jps.exe but found something estrange related to .

• These file should be in System/32. However, most Filemon instances where csrss.exe is associated with System/32 QUERY INFORMATION indicate "Attribute: error", but there are other instances NOT associated with System/32 but with "WinSxS\Manifest\x86" or "Assembly\GAC" with not always with the error indication.

• Besides that, I also read that in Task Mgr should appear TWO csrss.exe entrance but in mine there is only one, and it is a critical system process.

The information on Computing.Net is the opinions of its users. Such
opinions may not be accurate and they are to be used at your own risk.
Computing.Net cannot verify the validity of the statements made on this
site. Computing.Net and Compnet Ventures, LLC hereby disclaim all responsibility
and liability for the content of Computing.Net and its accuracy.